TABLE 2.
Minimal inhibitory concentration of meropenem and imipenem against Klebsiella pneumoniae.
| Antimicrobial | |||||
| Strain no. | Carbapenemase | MIC (mg/L) | susceptibility | ||
| MEM | IPM | MEM | IPM | ||
| KP1 | KPC-2 | 32 | 32 | R | R |
| KP2 | KPC-2 | 16 | 16 | R | R |
| KP3 | NDM-1 | 16 | 8 | R | I |
| KP4 | KPC-2 | 16 | 16 | R | R |
| KP5 | KPC-2 | 16 | 16 | R | R |
| KP6 | KPC-2 | 16 | 16 | R | R |
| KP7 | KPC-2 | 32 | 32 | R | R |
| KP8 | KPC-2 | 16 | 16 | R | R |
| KP9 | KPC-2 | 16 | 16 | R | R |
| KP10 | KPC-2 | 16 | 16 | R | R |
| KP11 | KPC-2 | 16 | 16 | R | R |
| KP12 | KPC-2 | 16 | 16 | R | R |
| KP13 | KPC-2 | 16 | 16 | R | R |
| KP14 | KPC-2 | 16 | 16 | R | R |
| KP15 | KPC-2 | 16 | 16 | R | R |
| KP16 | KPC-2 | 16 | 16 | R | R |
| KP17 | KPC-2 | 16 | 16 | R | R |
| KP18 | KPC-2 | 16 | 16 | R | R |
| KP19 | KPC-2 | 16 | 16 | R | R |
| KP20 | KPC-2 | 16 | 16 | R | R |
| KP21 | KPC-2 | 16 | 16 | R | R |
| KP22 | KPC-2 | 16 | 16 | R | R |
| KP23 | KPC-2 | 32 | 32 | R | R |
| KP24 | KPC-2 | 16 | 16 | R | R |
| KP25 | KPC-2 | 16 | 16 | R | R |
| KP26 | KPC-2 | 16 | 16 | R | R |
| KP27 | KPC-2 | 16 | 16 | R | R |
| KP28 | KPC-2 | 16 | 16 | R | R |
| KP29 | IMP-4 | 16 | 8 | R | I |
| KP30 | KPC-2 | 16 | 16 | R | R |
| KP31 | KPC-2 | 16 | 16 | R | R |
| KP32 | KPC-2 | 16 | 16 | R | R |
| KP34 | KPC-2 | 16 | 32 | R | R |
| KP35 | KPC-2 | 16 | 16 | R | R |
| KP36 | NDM-1 | 16 | 16 | R | R |
| KP37 | KPC-2 | 16 | 16 | R | R |
| KP38 | KPC-2 | 16 | 16 | R | R |
| KP39 | KPC-2 | 32 | 32 | R | R |
| KP40 | KPC-2 | 16 | 16 | R | R |
| KP41 | KPC-2 | 16 | 16 | R | R |
| KP42 | KPC-2 | 16 | 16 | R | R |
| KP43 | KPC-2 | 16 | 16 | R | R |
| KP44 | KPC-2 | NA | 16 | NA | R |
| KP45 | KPC-2 | 16 | 16 | R | R |
| KP46 | KPC-2 | 16 | 16 | R | R |
| KP47 | KPC-2 | 16 | 16 | R | R |
| KP48 | KPC-2 | 16 | 16 | R | R |
| KP49 | KPC-2 | 16 | 16 | R | R |
| KP50 | KPC-2 | 16 | 16 | R | R |
| KP51 | KPC-2 | 16 | 16 | R | R |
| KP55 | IMP-4; NDM-1 | NA | 8 | NA | I |
| KP56 | IMP-4 | 1 | 4 | S | I |
| KP57 | KPC-2; NDM-1 | 16 | 16 | R | R |
| KP58 | KPC-2; NDM-1 | NA | 16 | NA | R |
I, intermediate; IPM, imipenem; MEM, meropenem; R, resistant; S, susceptible. NA, not available. I, intermediate; IPM, imipenem; MEM, meropenem; S, susceptible. NA, not available.